What is the air quality in Greenfield today?

The current Air Quality Index (AQI) in Greenfield is 40 (Good). PM2.5 concentration is 9.66 µg/m³.

What is the temperature in Greenfield right now?

The current temperature in Greenfield is 12.6°C (feels like 12.6°C). Humidity is 65.8% and wind speed is 50.2 km/h.

Is it safe to go outside in Greenfield?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Greenfield, United States

Windy

12.6°C · 65.8% humidity

12.6°

Feels 12.6°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

25 5pm

40 8pm

30 11pm

27 2am

26 5am

—

— 8am

—

— 11am

—

24 2pm

Air Quality Index Trend

46h · 1 stn

View full history →

Greenfield's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Greenfield is 1.9× the WHO annual guideline of 5 µg/m³.

65.8%

Humidity

50.2 km/h

Wind NNW

1023.5 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

9.66 µg/m³

PM10

20.55 µg/m³

050100150200300500

What is the weather forecast for Greenfield?

Temperature & Precipitation

PM2.5 Trend

46h · 1 station

PM2.59.66 µg/m³ ✓ WHO

Good

PM1020.55 µg/m³

Good

UV INDEX0.7

Low

What is the 7-day forecast for Greenfield?

05-29

27.6° 6.4°

05-30

21.3° 18.1°

0.69 mm

05-31

29.3° 12.1°

06-01

29.7° 15.8°

0.06 mm

06-02

22.3° 12.7°

06-03

26.5° 22.5°

3.38 mm

06-04

26.2° 19.6°

Both models agree Avg diff: 4.4°C

What cities are near Greenfield?

46 Lawrence 46 Fishers 41 Shelbyville 46 Broad Ripple 46 Indianapolis 46 Greenwood 43 Noblesville 29 Anderson 46 Carmel 28 New Castle

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-29T00:10 UTC.